SNSD makes a surprising transformation into Wonder Girls! On the 15th of January episode of JTBC's "Girls Generations and Dangerous Boys", The members of SNSD can be seen singing Wonder Girls "Be my Baby" at the karaoke complete with dance moves.
For the show, they went out on a picnic and they went to karaoke with the boys, When Be My Baby was playing, they showed a perfect stage as the members were already familiar with the song and even knows the dance moves.
Also, After Be My Baby, SNSD also sung their song "The Boys" having a day filled with fun singing and dancing. Meanwhile, this episode will be broadcast on the 15th of January on JTBC.
Source: Nate news